PT-2021-23307 · Unknown · Concrete5-Legacy

Seongil-Wio · Published 2021-10-01 · Updated 2021-10-04 · CVE-2021-41464

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions concrete5-legacy versions 5.6.4.0 and below

Description The issue is a cross-site scripting (XSS) vulnerability that allows remote attackers to inject arbitrary web script or HTML via the rel parameter in the concrete/elements/collection add.php file. This enables attackers to execute malicious scripts on the victim's browser.

Recommendations For concrete5-legacy versions 5.6.4.0 and below, consider disabling access to the concrete/elements/collection add.php file until a patch is available. Restrict the use of the rel parameter to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-41464

Affected Products

Concrete5-Legacy

References · 5

• 🔥 https://github.com/concrete5/concrete5-legacy/issues/2006 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-41464 · Security Note
• https://osv.dev/vulnerability/CVE-2021-41464 · Vendor Advisory
• https://github.com/concrete5/concrete5-legacy · Note
• https://t.me/cibsecurity/29830 · Telegram Post